Matrix roaster



Dec. 4, 1934. o. c, ROESEN 1,982,756

MATRIX RoAsT-ER original Filed Sept. 2, 1925 dftotwu' Patented Dec. 4, 1934 UNITI-:D STATES PATENT oFFicE to Wood Newspaper Machinery Corporation,

New York, N. Y., a corporation of New York Original application September 2, 1926, Serial No.

Divided and this application October 2,' 1930, Serial No. Y485,913

3 Claims.

This is a division of` my Patent Nc. 1,843,489 dated February 2, 1932 on an application, Serial No. 133,161, filed September 2, 1926.

'I'his invention relates to a device for roasting 5 stereotype printing plate matrices.

cipal objects of the invention are to provide a machine which can operate continuously and in which the matrices can be introduced at one point andwithdrawn at another, fully and uniformly dried and roasted; to provide a construction inwhich vthe speed of operation can be varied to subject the matrices to the heat longer orv shorter periods of time as may be found necessary, and to provide a construction in which introduction and withdrawal of the matrices is a simple and convenient matter.

Other objects and advantages of the invention will appear hereinafter.

, Reference is to be had to the accompanying drawing in which Fig. 1 is a side view,` partly in section, of a matrix roaster embodying this invention;

Fig. 2 is an end view thereof, and

Fig. 3 is an enlarged sectional view.

The devices which have been used heretofore for roasting stereotype matrices have been of the type to operate by hand to roast the matrices individually, with no means forA accomplishing any of `the above mentioned results. The matrix is left in as long as the operator may judge necessary and the result is a. wide range in the amount of moisture left in the matrix after roasting. Also the Work is done. very slowly andone of the operators has to attend to each matrix individually and yhas to wait for one to be entirely dried before starting another.

'In order to avoid the delay and uncertainty, and to accomplish the results above mentioned, I provide a roaster in which the matrices are placed on a chain conveyor to secure continuous action. comprising a motor 12 having a driving wheel 14 which can be adjusted longitudinally along a driven disc 15, the surface of which it engages. Obviously the speed of rotation of the disc is controlled by the position of the wheel 14 and the speed of the machine is easily controlled. 'I'his wheel 15 is mounted on a shaft 16 which, by a worm 17, drives a worm wheel 18. The wheel 18 is on a shaft 30 carrying two sprocket Wheels 31 which drive two endless chains 32 or belts. The chains are carried at the other end by two other wheels 33. The chains are at op- The means for operation is shown as l posite sides of the machine just as far apart as the edges of a curved matrix M.

The conveyor formed by these two chains passes through an oven formed by a casing 34 having a semicircular form. Inside this casing is an inner curved double wall 35 supported by end walls 36. These end walls support stationaryl steam or hot water pipes 3'7 controlled individually by ordinary valves 38 and fed from a supply pipe 39. By means of these valves the proper degree of heat is regulated.

'I'he chains are provided, at intervals, with brackets 40 carrying matrix rests 41 having upturned curved anges 42. These anges are just far enough apart to receive the edges of a matrix after it is bent to the proper curvature. They are curved to that radius so as to hold the matrices at just the right curvature.

The chains, or conveyor, extend beyond the oven at the loading end far enough to permit the operator tobend a matrix and apply it to the rests in the position shown at the left in Fig. 1. 'I'hen the continuously moving conveyor carries the matrix through the oven at a speed regulated to secure the proper period of roasting. Theyk pass through one after another as indicated and are discharged at the other end from which they can be removed by hand.

It will be obvious that the speed of rotation having been fixed by proper adjustment of the wheel 14, rotation will be constant. Thus each matrix will be in the roaster the same length of time and thus be subjected to the same amount of heat.

In this way the roasting is uniform. A few matrices can be tested to see ifthey are dry enough and then the adjustment made to secure the desired results. In this Way a uniform product can be secured and one operator can handle as many matrices as a large number could under the old conditions. Also onlyone machine is required occupying only very little space to do the Work of a large number of the old form of matrix roasters.

The results above mentioned yare thus obtained. The matrices cannot get out of shape and they are roasted uniformly.

Although I have illustrated and described only oneform of the invention, I am aware of the fact that modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited to all the details 0f construction herein shown and described, but what I do claim is:-

1. In a flexible matrix roas'ter, the Vcombination with a curved roasting oven and means for supplying it with heat, of a conveyor for the matrices having a series of rests oppositely located and curved tor holding the opposite ends of the matrices so that the matrices will be held 'in curved condition with their centers outl of contact with the elementsof the conveyor to allow free circulation oi `heated air against their concave surfaces.

2. In a matrix roaster, the combination 'with a semicircular oven, open at the ends, of an endless conveyor passing through the oven and comi Patent Ne, 1,982,156.

oscAR CHARLES RoEsEN. i

pris'ing two chains movable together and having opposite vertical rests for the edges of the matrices to hold them in a exed shape similar to that oi' the oven.

3. In a matrix roaster, the combination with an oven oi' a general semicylindrical cross section, and va at conveyor for matrices arranged to move through the bottom of the oven along the ilat side thereof, said conveyor having upwardly turned anges at, its 'edge against which .the surfaces of the matrices rest flatwise to hold the matrix in a flexed semicylindrical shape.

OSCAR CHARLES ROE-SEN.

CERTIFICATE F CORRECTION.

December l 4.

It is hereby certified that the State of Incorporation of the assignee in the above numbered patent was erroneously written and printed as "New York" whereas said State of Incorporation should have been written and printed as Virginia, as shown by the records of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform 'to the record of the case in the Patent Office.

Signed and sealed this 12th day of February, A. D. 1935.

(Seal) Leslie Frazer 1. In a flexible matrix roas'ter, the Vcombination with a curved roasting oven and means for supplying it with heat, of a conveyor for the matrices having a series of rests oppositely located and curved tor holding the opposite ends of the matrices so that the matrices will be held 'in curved condition with their centers outl of contact with the elementsof the conveyor to allow free circulation oi `heated air against their concave surfaces.

2. In a matrix roaster, the combination 'with a semicircular oven, open at the ends, of an endless conveyor passing through the oven and comi Patent Ne, 1,982,156.

oscAR CHARLES RoEsEN. i

pris'ing two chains movable together and having opposite vertical rests for the edges of the matrices to hold them in a exed shape similar to that oi' the oven.

3. In a matrix roaster, the combination with an oven oi' a general semicylindrical cross section, and va at conveyor for matrices arranged to move through the bottom of the oven along the ilat side thereof, said conveyor having upwardly turned anges at, its 'edge against which .the surfaces of the matrices rest flatwise to hold the matrix in a flexed semicylindrical shape.

OSCAR CHARLES ROE-SEN.

CERTIFICATE F CORRECTION.

December l 4.

It is hereby certified that the State of Incorporation of the assignee in the above numbered patent was erroneously written and printed as "New York" whereas said State of Incorporation should have been written and printed as Virginia, as shown by the records of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform 'to the record of the case in the Patent Office.

Signed and sealed this 12th day of February, A. D. 1935.

(Seal) Leslie Frazer 

